Across
- 2. - Extraterrestrial being from another planet.
- 5. - A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
- 7. - The path followed by a celestial body around another in space.
- 10. - A person trained to travel and work in space.
Down
- 1. - A garment designed to protect astronauts from the vacuum and radiation of space.
- 3. - Relating to the moon.
- 4. - A spacecraft propelled by engines that burn fuel.
- 6. - A cloud of gas and dust in space where stars are born.
- 8. - A vast system of stars, gas, and dust held together by gravitational forces.
- 9. - A celestial object consisting of a nucleus of ice and dust that becomes luminous as it approaches the sun.